420J1 420J2 lesela la tšepe le sa hloekang
Tlhaloso e Khutšoanyane:
420J1 le 420J2 likhoele tsa tšepe tse sa hloekang ke mefuta e 'meli e tloaelehileng ea lisebelisoa tsa tšepe tse sa hloekang tseo e leng tsa letoto la litšepe tsa martensitic. Ba na le liphapang tse itseng ka sebopeho sa lik'hemik'hale le litšobotsi. Mona ke kakaretso e khuts'oane ea e 'ngoe le e' ngoe:
1. 420J1 tšepe e sa hloekang: 420J1 ke tšepe e sa hloekang ea carbon e tlaase e nang le boima bo phahameng le matla. Sebopeho sa eona sa lik'hemik'hale hangata se kenyelletsa hoo e ka bang 0.16-0.25% carbon, hoo e ka bang 1% chromium, le molybdenum e nyenyane. 420J1 e fana ka khanyetso e ntle ea kutu, ts'ebetso ea ho itšeha, le thepa ea ho sila. E sebelisoa hangata ho etsa lithipa, lisebelisoa tsa ho buoa, likarolo tsa mochini, le lisebelisoa tse ling tse sa senyeheng.
2. 420J2 tšepe e sa hloekang: 420J2 ke tšepe e sa hloekang ea k'habone e nang le bothata bo phahameng le ho hanyetsa ho apara. Sebopeho sa eona sa lik'hemik'hale hangata se na le hoo e ka bang 0.26-0.35% carbon le hoo e ka bang 1% chromium. 420J2 e na le khabone e phahameng ha e bapisoa le 420J1, e bakang boima bo eketsehileng le ts'ebetso ea ho itšeha. Hangata e sebelisoa ho etsa lithipa, li-blades, lisebelisoa tsa ho buoa, liliba le likarolo tse ling tsa mochini.
| Litlhaloso tsa 420J1 420J2likhoele tsa tšepe tse sa hloekang: |
| Litlhaloso | ASTM A240 / ASME SA240 |
| Kereiti | 321,321H,420J1, 420J2 430, 439, 441, 444 |
| Bophara | 8 - 600 limilimithara |
| Botenya | 0.09-6.0mm |
| Thekenoloji | Ho chesa, ho bata |
| Bokaholimo | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, seipone |
| Sebopeho | Li-coils, foil, Rolls, Strip, Flats, joalo-joalo. |
| Mamello | +/-0.005-+/-0.3mm |
| Ts'epe e sa beng le mabali420J1 420J2E hlobolisa Mephato e Tšoanang |
| TS'ELISO | WERKSTOFF NR. | UNS | EN | BS | HLOMPHO | SIS | JIS | AISI |
| SS 420J1 | 1.4021 | S42010 | X20Cr13 | 420S29 | Z20C13 | 2303 | SUS420J1 | 420L |
| SS 420J2 | 1.4028 | S42000 | X20Cr13 | 420S37 | Z20C13 | 2304 | SUS420J2 | 420M |
| Lits'ebetso tsa Lik'hemik'hale tsa SS 420J1 / 420J2 Strips: |
| Kereiti | C | Si | Mn | P | S | Cr |
| 420J1 | 0.16-0.25 max | 1.0 max | 1.0 max | 0.04 max | 0.03 max | 12.00-14.00 |
| 420J2 | 0.26-0.40 max | 1.0 max | 1.0 max | 0.04 max | 0.03 max | 12.00-14.00 |
| Mechanical Properties ea SS 420J1 / 420J2 strips: |
| Rm - Matla a tsitsitseng (MPa) (+QT) | 650-950 |
| Rp0.2 0.2% matla a bopaki (MPa) (+QT) | 450-600 |
| KV - Matla a amang (J) longitud., (+QT) | +20 ° 20-25 |
| A – Min. elongation at fracture (%) (+QT) | 10-12 |
| Vickers hardness ( HV): (+A) | 190-240 |
| Vickers hardness ( HV): (+QT) | 480 - 520 |
| Brinell hardness (HB): (+A)) | 230 |
| Mamello ea 420J1/420J2 Strips: |
| Botenya mm | Ho nepahala ho tloaelehileng mm | Ho nepahala ho phahameng mm |
| ≥0.01-<0.03 | ±0.002 | - |
| ≥0.03-<0.05 | ±0.003 | - |
| ≥0.05-<0.10 | ±0.006 | ±0.004 |
| ≥0.10-<0,25 | ±0.010 | ±0.006 |
| ≥0.25-<0,40 | ±0.014 | ±0.008 |
| ≥0.40-<0,60 | ±0.020 | ±0.010 |
| ≥0.60-<0,80 | ±0.025 | ±0.015 |
| ≥0.80-<1.0 | ±0.030 | ±0.020 |
| ≥1.0-<1.25 | ±0.040 | ±0.025 |
| ≥1.25-<1.50 | ±0.050 | ±0.030 |
| Ke Hobane'ng ha U Re Khetha: |
1. U ka fumana boitsebiso bo phethahetseng ho ea ka tlhokahalo ea hau bonyane theko e ka khonehang.
2. Re boetse re fana ka Reworks, FOB, CFR, CIF, le litheko tsa ho fana ka ntlo le ntlo. Re fana ka tlhahiso ea hore u etse tumellano ea ho tsamaisa thepa e tla u baballa haholo.
3. Thepa eo re fanang ka eona e ka netefatsoa ka botlalo, ho tloha ho setifikeiti sa tlhahlobo ea thepa e tala ho isa polelong ea ho qetela.(Litlaleho li tla hlaha ho latela tlhoko)
4. e tiisetso ea ho fana ka karabo nakong ea lihora tse 24(hangata ka hora e tšoanang)
5. U ka fumana mefuta e meng ea li-stock, ho tsamaisoa ha leloala ka ho fokotsa nako ea tlhahiso.
6. Re inehetse ka ho feletseng ho bareki ba rona. Haeba ho ke ke ha khoneha ho finyella litlhoko tsa hau ka mor'a ho hlahloba likhetho tsohle, re ke ke ra u khelosa ka ho etsa litšepiso tsa bohata tse tla theha likamano tse ntle tsa bareki.
| Netefatso ea Boleng ea SAKY STEEL (ho kenyeletsoa tse senyang le tse sa senyeheng) |
1. Teko ea Visual Dimension
2. Tlhahlobo ea mochine joalo ka tensile, Elongation le phokotso ea sebaka.
3. Tlhahlobo ea phello
4. Tlhahlobo ea tlhahlobo ea lik'hemik'hale
5. Teko ea boima
6. Teko ea tšireletso ea likoti
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Teko ea ho Roughness
10. Metallography Teko ea Teko
| Ho paka |
1. Ho paka ke habohlokoa haholo-holo tabeng ea thepa ea machaba eo thepa e fetang ka litsela tse fapa-fapaneng ho fihla moo e eang teng, kahoo re amehile haholo ka ho paka.
2. Saky steel's e paka thepa ea rona ka mekhoa e mengata ho latela lihlahisoa. Re paka lihlahisoa tsa rona ka mekhoa e mengata, joalo ka,
